• 한국산업정보학회논문지
• /
• 제9권1호
• /
• pp.49-55
• /
• 2004

e-Learning의 효율적인 운영과 개발을 위해 미국을 중심으로 표준안(SCORM)이 마련되고 있다. 현재 제시되고 있는 SCORM의 학습객체는 교수자측면의 개발 용이성과 재사용성을 강조하고 있다. 때문에 본 논문에서는 학습자 측면의 다양한 학습기회를 제공해 줄 수 있으며, 학습자의 학습기록을 정의할 수 있는 SCC(Sharable Content Collection)를 제시한다. 또한 SCC를 지원하기 위해 SCORM에서 제시하고 있는 SCO(Sharable Content Object)의 개선방안을 제시하며, 효율적인 SCC를 구성하기 위해 가상강의를 component화 한다. 이러한 연구를 통해 기존의 학습객체 개선과, SCC를 바탕으로 e-Learning 개선된 모델을 제시한다.

• 한국해양바이오학회지
• /
• 제8권1호
• /
• pp.1-9
• /
• 2016

The hydrolysis of biomass to fermentable sugar (saccharification) and to oligosaccharide is an essential process in biotechnology including biorefinery and biofood. Various macroalgae are commercially cultivated in several Asian countries as a useful resource for food and agar production. Agar is a major component of the cell walls of red algae that can be hydrolyzed by agarase. Agarases are classified into ${\alpha}$-agarase (E.C. 3.2.1.158) and ${\beta}$-agarase (E.C. 3.2.1.81) according to the cleavage pattern and grouped in the glycoside hydrolase (GH) family (GH-16, GH-58, GH-86, GH-96, and GH-118) based on the amino acid sequences of the proteins. Agarases have been isolated from various bacteria found in seawater and marine sediments. To increase productivity of the enzyme, a research on recombinant enzymes has been done. The application of recombinant agarase can be possible in the various filed such as energy, food, cosmetics, medical and so on. This paper reviews the source, biochemical characteristics and production system of recombinant agarases for further study.

• 미생물학회지
• /
• 제42권3호
• /
• pp.235-237
• /
• 2006

먹물버섯은 버섯 시원체로부터 버섯이 성숙되는 과정에서 자가소화가 일어나 먹물이라 불리는 검은 액체를 생성한다. 이 과정에서 멜라닌을 생성하는 laccase, 균류 세포벽 성분의 하나인 키틴을 분해하는 chitinase의 관련을 분석하고자 Northern hybridization 방법을 이용하여 유전자의 발현을 분석하였다. 시원체가 생성되고 버섯이 성숙되어 먹물을 생성하는 시기에 따라 멜라닌색소 생성 효소인 laccase와 킨틴분해효소인 chitinase의 발현이 증가하는 것이 확인되었다.

• 지역사회간호학회지
• /
• 제14권3호
• /
• pp.457-467
• /
• 2003

Purpose: This study examined the development and performance of the school health promotion policy guideline that is applicable to Korean school health. Methods: 1. The WHO's guideline was translated into Korean and modified by school health experts 2. A questionnaire was conducted to assess the performance of school health policy on 207 nurses in elementary schools in Seoul and Cheonbuk. Result: The Korean version of the school health promotion policy guidelines were developed including 9 components and 36 checkpoints. Compared to that of WHO, the component 'school nursing teacher' was added and three components were eliminated: 'equitable access to school resources', 'control of helminth', and 'sun protection policy'. The performance degree of first-aid, closure of school in a calamity, and control of HIV/AIDS was very low. The performance degree of a healthy diet, and regular physical examination was quite high. This study was the first that developed the school health promotion policy guideline and examined the performance. Further research is needed to validate the guidelines developed by this study.

• 대한전기학회논문지:전력기술부문A
• /
• 제55권7호
• /
• pp.297-305
• /
• 2006

This paper summarizes a development of visualization software for protective engineering in low-voltage power systems. The study is concentrated on the following aspects. First, a software engineering method is applied for designing the object-oriented program. The design and implementation of a Graphic User Interface(GUI) and its integration to a power system framework are developed using object-oriented programming(OOP) in Visual C++. Second, we develop the short circuit analysis module that oriented a low-voltage power system. It is possible to calculate a peak, symmetrical RMS, DC component and asymmetrical fault currents for each time. And it is the first software that can calculate the fault current for single branch of three-phase system. The calculation accuracy is compared with commercial software, and the libraries of low-voltage components are served for convenience use. Third, protective engineering functions are equipped. It is possible to automatically select the circuit breaker which based on the user input characteristics and the fault current calculation and examine the protective coordination. Through the case study, we verified that the developed software can be effectively used to examine the protective engineering in low-voltage power systems.

• 한국게임학회 논문지
• /
• 제4권3호
• /
• pp.21-28
• /
• 2004

게임개발 프로젝트의 설계는 프로세스 구성과 게임 소프트웨어의 프로그램 산출물과 태스크의 관리는 개발자간에 연계하여 구성해야 한다. 기존 개임개발 프로젝트 설계는 프로젝트 활동의 정의 및 변경을 지원하고, 형상관리 도구는 버전제어, 작업공간 관리, 빌드 관리 등을 지원한다. 본 논문의 설계도구는 UML을 사용하여 게임 컴포넌트 기반 개발 프로세스 모델을 설계하고, 프로세스의 진행 상태 기록, 변경 요청에 따른 처리, 태스크별 작업 진행 보고서 작성, 산출물 등록과 변경, 버전 기록, 산출물 또는 서식 검색 등의 기능을 연구하였다. 또한 시스템 설계를 사용함으로써 게임 공학 활동에 참여하는 개발자들이 분산 개발 환경에서 게임 소프트웨어 개발에 필요한 정보와 산출물 관리를 생산성 있게 할 수 있다. 이 시스템 구성에 따라 정보를 공유하면서 설계의 체계화 및 표준화를 수행 할 수 있다.

• 한국안전학회지
• /
• 제27권6호
• /
• pp.14-19
• /
• 2012

The Helium cooled ceramic reflector(HCCR) test blanket module(TBM) has been designed and developed to participate the ITER(International Thermonuclear Experimental Reactor) test blanket program in Korea. The TBM was one of the main objectives for developing ITER for proving the tritium self-sufficiency and the heat transfers to produce the electricity with the breeding blanket concept. Among the TBM components, the first wall(FW) was the most important component in safety since it was directly faced a high level of a heat and fast neutrons from the plasma side and could protect the others components inside TBM. In this paper, the FW has been designed through the thermo-mechanical analysis considering ITER operation conditions. With the developed simple models, the stress limit analysis based on RCC-MR code which is the nuclear power plant design codes in France was evaluated for the allowable design criteria. The results showed that the designed FW model satisfied $1.5S_m$ or $3S_m$ of the allowable stress($S_m$) in RCC-MR code at the maximum stress region in the FW.

• 한국조경학회:학술대회논문집
• /
• 한국조경학회 2007년도 Journal of Landscape Architecture in Asia Vol.3
• /
• pp.72-77
• /
• 2007

Civic participation in managing the work of a park is a natural experience, and urban culture has a role in forming and communicating ideas. However, when it comes to managing a copse, there is no clear scenic image. In this study, my intention was to determine a desirable scene involving a copse and suggest a target image for managing work from a scenic perspective. I selected 12 photographs and listed 10 pairs of adjectives that were judged to reflect the effect produced by the copse scene using the repertory grid development technique. In addition, I performed a scenic evaluation using the semantic differential(SD) method with each pair of adjectives. Factor analysis was performed based on questionnaire survey results, such that the scenic structure of the copse had a clear definition. In addition, the physical characteristics of the photographs were analyzed using Adobe Photoshop 6.0 and the correlations between the results of the questionnaire survey were understood using multiple regression analysis. A desirable scenic image of the copse became clear through this process and I was able to suggest various options of scenic images. Taking the aspects of urban culture into consideration, park improvement projects(including their planning stages) should be implemented by involving residents, which will lead to further development of park planning and maintenance theories and projects giving due consideration to residents' opinions.

• 정보처리학회논문지D
• /
• 제8D권6호
• /
• pp.637-644
• /
• 2001

컴포넌트 기반 애플리케이션의 개발 및 배치를 위한 명세를 제공하는 EJB(Enterprise JavaBeans)는 엔터프라이즈 환경에서 가장 복잡한 트랜잭션 관리, 퍼시스턴스, 동시성 제어 등을 자동적으로 관리해주는 J2EE 환경의 핵심으로서 분산개발을 가능하게 한다. 본 논문에서는 EJB 기반 레거시 시스템에서 DAO의 트랜잭션 로직 복잡성과 시스템의 성능저하 문제를 해결하고자 한다. 따라서, 본 논문에서는 Iterator 패턴을 적용한 IDAO를 설계 및 구현하였다. IDAO는 컨테이너 관리 트랜잭션을 통해 데이터베이스 커넥션에 따른 트랜잭션 로직의 복잡성과 시스템의 과부하 감소 및 시스템의 성능저하를 감소시키는 효과를 얻었다.

• 한국전기전자재료학회논문지
• /
• 제27권8호
• /
• pp.535-540
• /
• 2014

Because of the development of LED technology, products due to high output and compact, the material with high thermal conductivity has been developed. Now that heat radiating part of the LED lamp is currently used for die casting of aluminum. The development of aluminum with excellent thermal conductivity is required. In this study, we measured the thermal properties and compared them while we produced the alloy by changing the component of die casting aluminum. From this study, the thermal conductivity and thermal resistance of the developed alloy were superior to die casting aluminum.